52 
Mr. D. G. Elliot on the Trocbilidse. 
for examination and comparison, the type of the present 
species. It is a small bird, and, as stated by its describer, 
has a peculiarly coloured tail, quite different from any other 
species with which I am acquainted, although most nearly 
resembling, as I have already stated, the bird I have pro¬ 
visionally called Thaumatias nitidicauda, I believe the type 
is unique. 
~ 4 - 17. Thaumatias luci^. 
Thaumatias lucice, Lawr. Proc. Acad. Nat. Sci. Phil. 1867, 
p. 233. 
Hah. Honduras. 
I do not know this species autoptically. It was described 
by Mr. Lawrence (/. c.) from a single specimen contained in 
a collection of birds formed in various parts of Central 
America; and the type, which is in the National Museum at 
Washington, remains, I believe, unique. Mr. Lawrence says 
that in size and colour of body it is much like T. linnm [T. 
tobaci) ; but the tail is quite different, and closely resembles 
in the colouring of its under surface that of T. chiompectus. 
~L 18. Thaumatias nitidifrons. 
Thaumatias nitidifrons, Gould, P. Z. S. 1860, p. 308; id. 
Mon. Troch. vol. v. pi. 297; id. Intr. Mon. Troch. 8vo ed. 
p. 152. 
Hab. Venezuela? 
This is a very distinct and rare species. Besides Mr. 
Gould^’s type I have seen but one other, now in the collection 
of Count Turati, at Milan. In its glittering crown and breast 
it is conspicuously different from all the members of this genus, 
being the only one that has both these parts clothed in metallic 
colours. Its habitat is not yet known. 
19. Thaumatias CiERULEiCEPS. 
Thaumatias cceruleiceps, Gould, P. Z. S. 1860, p. 307; id. 
Intr. Mon. Troch. 8vo ed. p. 152. 
Hab. Columbia. 
I am indebted to Mr. Gould for the opportunity of ex¬ 
amining this bird, the type of which is now before me, having 
